evalcode
diff --git a/‎pages/tutorials/TypeScript in 5 minutes.md‎
Lines changed: 2 additions & 2 deletions b/‎pages/tutorials/TypeScript in 5 minutes.md‎
Lines changed: 2 additions & 2 deletions
@@ -118,9 +118,9 @@ Notice that classes and interfaces play well together, letting the programmer de
 Also of note, the use of `public` on arguments to the constructor is a shorthand that allows us to automatically create properties with that name.
 
 ```ts
-class Student {
+class Student implements Person {
     fullName: string;
-    constructor(public firstName, public middleInitial, public lastName) {
+    constructor(public firstName: string, public middleInitial: string, public lastName: string) {
         this.fullName = firstName + " " + middleInitial + " " + lastName;
     }
 }
Original file line number	Diff line number	Diff line change
`@@ -118,9 +118,9 @@ Notice that classes and interfaces play well together, letting the programmer de`
`118`	`118`	Also of note, the use of `public` on arguments to the constructor is a shorthand that allows us to automatically create properties with that name.
`119`	`119`
`120`	`120`	```ts
`121`		`-class Student {`
	`121`	`+class Student implements Person {`
`122`	`122`	`fullName: string;`
`123`		`- constructor(public firstName, public middleInitial, public lastName) {`
	`123`	`+ constructor(public firstName: string, public middleInitial: string, public lastName: string) {`
`124`	`124`	`this.fullName = firstName + " " + middleInitial + " " + lastName;`
`125`	`125`	`}`
`126`	`126`	`}`